How many periods are there in the text of frog writing poetry?

5. Frog Writing Poems is a lively children's poem with childlike language. The author vividly describes the scene of frogs croaking like poems in rainy days, and vividly compares tadpoles, water bubbles and a string of water droplets to commas, periods and ellipsis in the poem, which makes people think. There are five periods in the original text of Frog Writing Poems.